Arduino Basics 1: LEDs
I am going to start with some very simple programs, but hopefully build and program them in such a way that they can easily be reused in larger programs without too much modification.
LEDs are used in many applications and can be very useful when debugging. Turning on an LED can be compared to writing "Hello World" or some other test statement to the terminal window. LEDs have a positive end (the longer one) and a negative end (shorter). When hooking up a circuit make sure that the LED has the correct orientation.
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